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Through numerical simulation based on the particle flow method, DEM numerical test samples are generated in accordance with the results of laboratory tests on standard sand. Using gravity deposition modelling of irregula...

Este artigo apresenta alguns resultados de uma pesquisa de campo realizada em 2002 com o objetivo de compreender como os professores de História do ensino médio representam o saber histórico escolar que produzem cotid...

Maslow's theory is by far the most known theory of motivation, and the most common in the business and management practice. Herzberg's theory fits the observations and explains some aspects of human motivation left unexp...

BackgroundDigital health interventions (DHIs) often struggle with participant engagement. A stepped care approach, starting with low-resource intensity strategies and escalating as needed, can optimize resource use. Yet ...

This paper highlights the importance of islands for proposing and testing hypotheses in stream ecology, and therefore, advocates for implementing reference studies in Gorgona Island (Colombian Pacific). It firstly summar...

Birds represent a significant hazard to flying aircraft as illustrated by the “Miracle on the Hudson” encounter in 2009 between U.S. Airways Flight 1549 and a flock of Canada Geese, forcing the flight to ditch in the...

ABSTRACT The objective of this study was to assess behavior patterns in Brazilian farm milk prices. We employed a structural time series techniques model, the Unobserved Component Model (UCM), which is part of the family...

Agriculture remains the food supplier of many households globally. In Africa, agriculture helps many farm households to meet their household food needs. Given the importance of agriculture in achieving food security in m...

The airport industry is characterized by real-time, complex, and high-intensity operations, making it highly dependent on supply chain reliability to maintain service continuity and operational performance. Soekarno–Ha...

Unmanned Aerial Vehicles (UAVs) are in the midst of aviation’s next generation. UAVs are being utilized at an increasing rate by military and security operations and are becoming widely popular in usage for activities ...

ABSTRACT Background Halfway through the final decade of actions towards the 2030 Sustainable Development Goals (SDGs), progress toward SDG7 is off track. It is estimated that by 2030, 660 million people, mainly rural pop...

Estudiamos la riqueza y composición de especies vegetales en tres afloramientos rocosos (lajas) en Lomerío, Santa Cruz, Bolivia, dentro de un bosque seco tropical. Determinamos la variación de la vegetación desde el ...

Mycobacterium tuberculosis (M.tb.) infection leads to over 1.5 million deaths annually, despite widespread vaccination with BCG at birth. Causes for the ongoing tuberculosis endemic are complex and include the failure of...

Altimeter corrections for non-standard temperature pose a challenge because accurate calculations require detailed knowledge of the temperature structure of the atmosphere between the surface and the aircraft. By applyin...

Abstract At low concentrations, cadmium (Cd) stimulates expression of cytoprotective genes. Cadmium induces the mRNA of NAD(P)H: quinone oxidoreductase 1 (NQO1) and heme oxygenase-1 (HO-1), which are nuclear factor (eryt...

Among the Middle Pleistocene African fossils that are central to discussions about the evolution of Homo sapiens is the partial cranium from Florisbad, South Africa. The fossil, dated to MIS 8 (300–243 ka BP), combines...

The authors, summarily expose some of the most promising methods in the matter of regional science, applicable to regional planning: a) Gravitation models, represented in mathematical terms, to be able to solve practical...

Los gasterópodos Neritinidae de Puerto Rico presentan un ciclo de vida anfídromo y exhiben polimorfismo en los patrones de coloración de la concha. Se identificó que la oviposición aumenta río arriba conforme los i...